Chemistry Ch.4 Word Scramble
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Question | Answer |
Democritus | Called natures basic particle an atom, meaning "indivisible" |
Aristotle | was much more influential, and his opinion that matter could be infinitely divided prevailed for almost 2000 years. earth, water, air, fire. |
What are the important modifications of the modern atomic theory? | 1) Atoms are divisible 2) An element can have atoms with different masses. |
Why can Dalton's ideas be called a theory? | Dalton changed Democritus' ideas into a scientific theory that could be tested. As a result, some aspects of Daltons theory have changed. |
What is the modern atomic theory that Dalton proposed? | Proposed that the elements where composed of atoms and only whole numbers of atoms can combine and form compounds. |
How come Aristotle and Democritus ideas not considered theories? | Because there was not scientific testing neither view could be supported by experimental evidence. |
Atom | Is defined as the smallest particle of an element that retains the chemical properties of that element. |
What is the "anatomy" of an atom? | nucleus + electron cloud. |
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